Mining is extremely profitable against running costs right now. You don't need any higher exchange rate for that.

Bolded for emphasis.

I think someone in the Mining sub calculated that 1st gen 130-110nm ASICs would maintain profitability against running costs up to a difficulty of nearly 2 billion. While we're only hitting 150 million right now, I think we are projected to multiply current hashrate (1 petahash) by many, many times if all these other ASIC manufacturers deliver product. And that's just what's been promised between now and February 2014. Big "if" in some cases, but I suspect they will mostly pull through within a 6 months timeframe, even if they don't deliver to their own (promotion influenced) targets. So things may finally settle around March next year, and it could easily reach above 2 billion difficulty, even if one manufacturer scams or folds.

Since difficulty follows price, and price has corrected from the high, I expect difficulty to peak out too and correct due to unprofitable miners switching off equipment, just like in 2011. I would also think this will happen somewhere the coming months.

Since these are all feedback loops I wonder whether this event will have an influence on the btc price. Anyone knows?

Since difficulty follows price, and price has corrected from the high, I expect difficulty to peak out too and correct due to unprofitable miners switching off equipment, just like in 2011. I would also think this will happen somewhere the coming months.

Since these are all feedback loops I wonder whether this event will have an influence on the btc price. Anyone knows?

difficulty will continue to go up for a long while still

once we reach the limits for producing the most efficient bitcoin mining machine, then hash rate will fall, but I think we are a long way off from that. idk but i feel like there will be more than 2 generations of ACIS before we reach this technological limitation.

Since difficulty follows price, and price has corrected from the high, I expect difficulty to peak out too and correct due to unprofitable miners switching off equipment, just like in 2011. I would also think this will happen somewhere the coming months.

Since these are all feedback loops I wonder whether this event will have an influence on the btc price. Anyone knows?

difficulty will continue to go up for a long while still

once we reach the limits for producing the most efficient bitcoin mining machine, then hash rate will fall, but I think we are a long way off from that. idk but i feel like there will be more than 2 generations of ACIS before we reach this technological limitation.

Mining becomes almost unprofitable. Nobody is investing in mining equipment but there is still a small gain to be made.Somebody with deep enough pockets continues to buy equipment (although at a loss) just to drive and then keep the entire mining unprofitable for most miners at a certain loss even for themselves.Eventually more miners quit and the mysterious organisation comes close to 51%.

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

Mining becomes almost unprofitable. Nobody is investing in mining equipment but there is still a small gain to be made.Somebody with deep enough pockets continues to buy equipment (although at a loss) just to drive and then keep the entire mining unprofitable for most miners at a certain loss even for themselves.Eventually more miners quit and the mysterious organisation comes close to 51%.

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

That's why we have farmers who take their water by hand from the wells and use digging sticks and no farms with irrigation and harvesting machines.

Also i would love to see how many days you'll mange to stay in a rented house after the owner gets hit with a 1000$ bill.

Mining becomes almost unprofitable. Nobody is investing in mining equipment but there is still a small gain to be made.Somebody with deep enough pockets continues to buy equipment (although at a loss) just to drive and then keep the entire mining unprofitable for most miners at a certain loss even for themselves.Eventually more miners quit and the mysterious organisation comes close to 51%.

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

That's why we have farmers who take their water by hand from the wells and use digging sticks and no farms with irrigation and harvesting machines.

Also i would love to see how many days you'll mange to stay in a rented house after the owner gets hit with a 1000$ bill.

With first gen ASICs, you would need 200 GH/s to use $1000 in electricity in a month. That much hardware is not exactly within most hobbyist budgets.

With BFL Monarchs, you would need about 25.7 TH/s or roughly 42.8 cards to use $1000 in electricity in a month.

Mining becomes almost unprofitable. Nobody is investing in mining equipment but there is still a small gain to be made.Somebody with deep enough pockets continues to buy equipment (although at a loss) just to drive and then keep the entire mining unprofitable for most miners at a certain loss even for themselves.Eventually more miners quit and the mysterious organisation comes close to 51%.

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

That's why we have farmers who take their water by hand from the wells and use digging sticks and no farms with irrigation and harvesting machines.

Also i would love to see how many days you'll mange to stay in a rented house after the owner gets hit with a 1000$ bill.

With first gen ASICs, you would need 200 GH/s to use $1000 in electricity in a month. That much hardware is not exactly within most hobbyist budgets.

With BFL Monarchs, you would need about 25.7 TH/s or roughly 42.8 cards to use $1000 in electricity in a month.

And a 4800 piece of "hashing" is within most rent a home hobbyist budget?

My theory was as simple as it gets , it will cost less and less money to make an actual attack for the 51%.Don't forget that my FUD theory doesn't mean hey we buy 10 millions of equipment and get the necessary hashrate from the first second they plug in.

They just have to buy equipment as other miners do (even receive profit in the first stages ) and invest invest until this is going to make a loss for every miner (including them) and at that point when people quit >1 hour > 10 blocks and bitcoin is doomed. (which I hope not)

Mining becomes almost unprofitable. Nobody is investing in mining equipment but there is still a small gain to be made.Somebody with deep enough pockets continues to buy equipment (although at a loss) just to drive and then keep the entire mining unprofitable for most miners at a certain loss even for themselves.Eventually more miners quit and the mysterious organisation comes close to 51%.

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

That's why we have farmers who take their water by hand from the wells and use digging sticks and no farms with irrigation and harvesting machines.

Also i would love to see how many days you'll mange to stay in a rented house after the owner gets hit with a 1000$ bill.

With first gen ASICs, you would need 200 GH/s to use $1000 in electricity in a month. That much hardware is not exactly within most hobbyist budgets.

With BFL Monarchs, you would need about 25.7 TH/s or roughly 42.8 cards to use $1000 in electricity in a month.

And a 4800 piece of "hashing" is within most rent a home hobbyist budget?

My theory was as simple as it gets , it will cost less and less money to make an actual attack for the 51%.Don't forget that my FUD theory doesn't mean hey we buy 10 millions of equipment and get the necessary hashrate from the first second they plug in.

They just have to buy equipment as other miners do (even receive profit in the first stages ) and invest invest until this is going to make a loss for every miner (including them) and at that point when people quit >1 hour > 10 blocks and bitcoin is doomed. (which I hope not)

I don't think large scale mining farms can operate effectively, since there are lots of miners with free electricity included in rent. That is easy to achieve by millions of individuals but not possible for an organization

That's why we have farmers who take their water by hand from the wells and use digging sticks and no farms with irrigation and harvesting machines.

Also i would love to see how many days you'll mange to stay in a rented house after the owner gets hit with a 1000$ bill.

Each of those miners maybe only draw 300w for 60Gh, but the number of those miners can be millions, thus the hash power will be very distributed around the world. Any single mining farm can not afford too much electricity and heat burden, they will be quickly overwhelmed by millions of miners with free electricity

Maybe some large mining farm can design water cooling devices and sell the hot water as a heating service, but due to quick technology advance in ASIC devices, that plan is also risky

everything that produces heat from electricity will mine, it will be a standard chip / resistor

toaster with mining resistors

hot water heating element

bar heater

hairdryer

think about it.

It could make sense at some point in the development of mining manufacturing, likely when the transaction fees regularly become a significant part of the block reward. That could take another 2 reward halvings though, so until then, it makes more sense to take the route of massive farm + selling complete mining units. And making sure the farm's online before they start shipping, of course